package adv327;

/**
 * @author oldliu
 * @since 1.0
 */
public class CharTest {
    public static void main(String[] args) {
        double d=Double.parseDouble("+444.555");
        System.out.println(d);
       String str="I love Java8";
        char[] cr = str.toCharArray();
        for(char c:cr){
            System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>");
            System.out.println(c+":"+Character.isUpperCase(c)+" 大写？");
            System.out.println(c+":"+Character.isLowerCase(c)+" 小写？");
            System.out.println(c+":"+Character.isSpaceChar(c)+" 空格？");
            System.out.println(c+":"+Character.isDigit(c)+" 数字？");
            System.out.println(c+":"+Character.isUnicodeIdentifierStart(c)+" unicode标志符？");
        }
    }
}
